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* Special regressions report for the pending 5.16 release
@ 2022-01-07 10:59 Thorsten Leemhuis
  2022-01-07 16:24 ` Deucher, Alexander
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: Thorsten Leemhuis @ 2022-01-07 10:59 UTC (permalink / raw)
  To: Linus Torvalds, regressions
  Cc: Song Liu, Jens Axboe, wsa, Mario Limonciello, Alex Deucher,
	Christian König, Pan, Xinhui, Linux Kernel Mailing List

Hi Linus,



a quick brief manual regressions report, as I assume you'll likely
release 5.16 soon and thus might find this helpful. Below is a list of
remaining regressions in 5.16-rc I'm currently aware of.


regressions where a fix exists

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



* This fix afaics is not yet mainlined:

[PATCH] md/raid1: fix missing bitmap update w/o WriteMostly devices

https://lore.kernel.org/all/20220103230401.180704-1-song@kernel.org/



But I'm pretty sure Jens (CCed) will send it onwards soon:

https://lore.kernel.org/all/499b185d-ff9a-934e-7768-ec796244fa1a@kernel.dk/



* There is an open regression "Applications that need amdgpu doesn't run
after waking up from suspend":

https://lore.kernel.org/all/1295184560.182511.1639075777725@mail.yahoo.com/



Wolfram (CCed) plans to revert a i2c commit to fix it, but I'm not sure
if he plans to send in onwards for 5.16 (or if that would be a good idea
at all):

https://lore.kernel.org/lkml/20220106122452.18719-1-wsa@kernel.org/



* There are suspend and resume problems related to amdgpu:

https://bugzilla.kernel.org/show_bug.cgi?id=215436

Mario (CCed) recently found the root cause and came up with a fix, but
it likely needs a little more time to bake:

https://lore.kernel.org/all/BL1PR12MB5157F21C23A020052FF5C13BE24C9@BL1PR12MB5157.namprd12.prod.outlook.com/


https://lore.kernel.org/all/20220106163054.13781-3-mario.limonciello@amd.com/

no fix in sight

~~~~~~~~~~~~~~~



 * screen contents do get restored after some input events (so it
doesn't stay blank).

https://bugzilla.kernel.org/show_bug.cgi?id=215203

(related: https://gitlab.freedesktop.org/drm/amd/-/issues/1840 )



Alex (CCed) is trying hard to find a fix for, but afaics needs more time.



Need more time to analyse

~~~~~~~~~~~~~~~~~~~~~~~~~



I'm aware of two more reports that afaics need (a lot?) more time to
analyse:



 * suspend issues for a user that faces another regression that might
interfer:

https://lore.kernel.org/linux-pm/256689953.114854578.1640622738334.JavaMail.root@zimbra40-e7.priv.proxad.net/

https://bugzilla.kernel.org/show_bug.cgi?id=215427



 * 5-10% increase in IO latencies with nohz balance patch

https://lore.kernel.org/lkml/YaUH5GFFoLiS4%2F3%2F@localhost.localdomain/



Closing words

~~~~~~~~~~~~~



HTH, ciao, Thorsten

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2022-01-07 21:33 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-01-07 10:59 Special regressions report for the pending 5.16 release Thorsten Leemhuis
2022-01-07 16:24 ` Deucher, Alexander
2022-01-07 16:30 ` Jens Axboe
2022-01-07 20:31 ` Wolfram Sang
2022-01-07 21:33 ` Linus Torvalds

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